Looking for the BOSS components for a heavy barrel .223/5.56. All I have now is the CR sleeve and a cupped washer threaded on the barrel. I haven’t seen one like this before and no one can tell me if the cupped washer with the CR sleeve are parts options if someone would have wanted to take the BOSS off of a gun. I would like to put the original parts back on the gun but not finding them anywhere. Called Midwest gun works and Numrich but not in their inventory. Any help would be greatly appreciated.
